WIRING
Printed From: CorrectCraftFan.com
Category: Buy and Sell
Forum Name: Boat Parts Wanted
Forum Discription: Parts wanted only
URL: http://www.CorrectCraftFan.com/forum/forum_posts.asp?TID=10317
Printed Date: November-19-2024 at 6:17pm
Topic: WIRING
Posted By: tforrest
Subject: WIRING
Date Posted: April-29-2008 at 12:17am
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I replaced the temp. guage in my 79 st.the wiring is in bad condition a few wires just fell off. Now I have lost my ground at the motor. The motor will turn over but I do not have any spark . Do I need to run a new ground from the dash to the motor. ------------- Tommy Forrest |
Replies:
Posted By: 8122pbrainard
Date Posted: April-29-2008 at 11:39am
Tommy, You need to take a hard look at your wiring and do any needed repairs and clean up at all connections including the muti pin rubber plugs in the wiring harness. The no spark issue is not related to a bad ground at the dash. The coil via the ballast resister gets 12V (hot) from the ignition switch. The ground on the coil would come off the engine block or out of the harness on the engine. Check for voltage at the coil with the ignition turned on. If nothing is there, work backwards. Here's a basic wiring diagram that you can follow.
Corrosion and loose connections are typical. The .250" "sta-con" quick connects on my 77 were all broken and may be what is falling off under your dash. I ended up replacing all of them as well as disconnecting every connection, cleaning and then putting it all back with a dab of dielectric grease. After a day of this, I actually picked up close to 2 volts of voltage drop to the dash just due to bad corroded connections. ------------- /diaries/details.asp?ID=1622" rel="nofollow - 54 Atom /diaries/details.asp?ID=2179" rel="nofollow - 77 Tique 64 X55 Dunphy Keep it original, Pete < |
Posted By: tforrest
Date Posted: April-29-2008 at 1:26pm
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Thanks for the info. Using a test light schould I get a light going from the hot side of the selnoid to the engine ground when the switch is on. ------------- Tommy Forrest |
Posted By: 8122pbrainard
Date Posted: April-29-2008 at 2:01pm
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You should have power at the red wire on the solenoid all the time. The white wire from the ignition switch to the solinoid is to energize the solinoid when to turn the key to start the engine.
You have said that the engine does turn over but check and clean up the battery cables at both ends. ------------- /diaries/details.asp?ID=1622" rel="nofollow - 54 Atom /diaries/details.asp?ID=2179" rel="nofollow - 77 Tique 64 X55 Dunphy Keep it original, Pete < |